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Related Experiment Videos

Oncostatin M.

A G Bruce1, P S Linsley, T M Rose

  • 1Bristol-Myers Squibb, Pharmaceutical Research Institute-Seattle, WA 98121.

Progress in Growth Factor Research
|January 1, 1992
PubMed
Summary
This summary is machine-generated.

Oncostatin M (OSM), a cytokine, inhibits tumor cell growth. Its similarities to other cytokines suggest shared evolutionary origins and receptor subunits, explaining overlapping biological effects.

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Area of Science:

  • Biochemistry
  • Molecular Biology
  • Immunology

Background:

  • Oncostatin M (OSM) is a polypeptide cytokine initially identified for its ability to inhibit the in vitro growth of melanoma and solid tumor cells.
  • OSM shares significant sequence and structural similarities with leukemia inhibitory factor (LIF), ciliary neurotrophic factor (CNTF), granulocyte colony-stimulating factor (G-CSF), interleukin 6 (IL-6), and interleukin 11 (IL-11).

Purpose of the Study:

  • To investigate the evolutionary relationships of OSM with other related cytokines.
  • To understand the molecular basis for the overlapping biological activities observed among OSM and its related cytokine family members.

Main Methods:

  • Comparative analysis of amino acid sequences and predicted secondary structures of OSM and related cytokines.
  • Examination of gene organization and exon structure for evolutionary insights.

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  • Review of existing literature on the in vitro activities and receptor interactions of OSM and related cytokines.

    • Main Results:

    • OSM exhibits substantial similarities in primary amino acid sequence and predicted secondary structure to LIF, CNTF, G-CSF, IL-6, and IL-11.
    • Analysis of gene structures reveals a shared exon organization, indicating a common ancestral gene for these cytokines.
    • OSM shares several in vitro activities with other members of this cytokine family.

    Conclusions:

    • The shared exon organization suggests that OSM and related cytokines evolved from a common ancestral gene.
    • The overlapping biological effects of OSM and related cytokines can be attributed to the sharing of common receptor subunits.